net/hns3: fix operating queue when TCAM table is invalid

Reset queues will query the TCAM table. The table is cleared after global
or imp reset. Currently, PF driver first resets Rx/Tx queues and then
restore the table during the reset recovery process, which will fail to
query the table and trigger a RAS error.

Fixes: fa29fe45a7b4 ("net/hns3: support queue start and stop")
Cc: stable@dpdk.org
Signed-off-by: Huisong Li <lihuisong@huawei.com>
Signed-off-by: Min Hu (Connor) <humin29@huawei.com>

diff --git a/drivers/net/hns3/hns3_ethdev.c b/drivers/net/hns3/hns3_ethdev.c
index 57f1572..2641b6f 100644 (file)
--- a/drivers/net/hns3/hns3_ethdev.c
+++ b/drivers/net/hns3/hns3_ethdev.c
@@ -4378,6 +4378,10 @@ hns3_init_hardware(struct hns3_adapter *hns)
        struct hns3_hw *hw = &hns->hw;
        int ret;
 
+       /*
+        * All queue-related HW operations must be performed after the TCAM
+        * table is configured.
+        */
        ret = hns3_map_tqp(hw);
        if (ret) {
                PMD_INIT_LOG(ERR, "Failed to map tqp: %d", ret);
@@ -5547,15 +5551,15 @@ hns3_reinit_dev(struct hns3_adapter *hns)
                return ret;
        }
 
-       ret = hns3_reset_all_tqps(hns);
+       ret = hns3_init_hardware(hns);
        if (ret) {
-               hns3_err(hw, "Failed to reset all queues: %d", ret);
+               hns3_err(hw, "Failed to init hardware: %d", ret);
                return ret;
        }
 
-       ret = hns3_init_hardware(hns);
+       ret = hns3_reset_all_tqps(hns);
        if (ret) {
-               hns3_err(hw, "Failed to init hardware: %d", ret);
+               hns3_err(hw, "Failed to reset all queues: %d", ret);
                return ret;
        }